Kamstrup OMNIPOWER® Single Phase STS prepayment with wireless keypad 100A

OMNIPOWER® Single Phase STS prepayment with wireless keypad 100A. Wireless remote keypad for token entry and meter interrogation. Fitted with internal Smart disconnect breaker, RF communications for remote access, Accuracy Class 1, Measuring 4 quadrants, Standard with Battery & Supercap.

Keypad batteries is user replaceable.

Call us for more details and pricing.

The OMNIPOWER® STS prepayment solution is all about securing the utility’s income. It keeps track of the consumer’s credit balance and ensures that no power consumption can occur without having been paid for in advance. Based on the globally recognized STS standard, it securely handles the process of adding credit to the balance and ensures proper validation, whether STS tokens are added on-site by the consumer or remotely by the utility. With its ability to handle a variety of tariff structures, the OMNIPOWER® STS prepayment solution can serve as vehicle for increased energy awareness, energy savings and contribute to achieving a more evenly distributed load.

Prepayment for any need

The OMNIPOWER® STS prepayment solution is available as an offline solution (Basic) or a backend-integrated solution (Extended) with full AMR and remote access in addition to the offline functionality. Both are based on the proven technology of the OMNIPOWER® electricity meter, which offers high precision, low own consumption and a highly stable UC-3 breaker, crucial to reaping the benefits of a prepayment solution. Both single phase and three phase OMNIPOWER® electricity meters are certified STS compliant.

Measuring principle

  • Current Current measurement by current shunt
  • Voltage Voltage measurement by voltage divider

Nominal voltage: Un 1×230 VAC -20 % – +15 %

Nominal Current: Itr – Ib (Imax) 0.25-5(100)A 35 mm²

Accuracy class

  • MID: Class B (1%)
  • IEC: Class 1

Nominal frequency fn 50 Hz ± 5 % or 60 Hz ± 5 %

Phase displacement Unlimited

Operating temperature: -40 °C – +70 °C

Storage temperature: -40 °C – +85 °C

Protection class IP54

Protection class II

Relative humidity

  • < 75 % year’s average at 21 °C
  • < 95 % less than 30 days/year, at 25 °C

Weight: 1100 g with breaker

Application area Indoors or outdoors in suitable meter cabinet

Internal consumption

  • Maximum power consumption of the current circuits with basic current: 01 VA 0.01 VA
  • Maximum power consumption of the voltage circuits: 6 VA, 0.2 W

Materials: Glass reinforced polycarbonate

Data storage:  EEPROM, > 10 years without voltage


  • LCD, 7 mm digit height (value field)
  • LCD, 5 mm digit height (identification readings)
  • LCD, 3 mm digit height (voltage and tariff readings)

Meter constant 1000 imp/kWh

S0 pulse diode 1000 imp/kWh, kvarh

Pulse time 30 ms ± 10 %

S0 pulse output 1000 imp/kWh

Pulse time 30 ms ± 10 %

Short circuit level 4500 A

Real-time clock (RTC)

Accuracy: Typically 5 ppm at 23 °C

Backup Battery life > 10 years at normal operation

Supercap life > 10 years at normal operation

Supercap operating time 7 days fully charged